http://www.idnet.net/solutions/homeofficebroadband.jsp
Can't recommend them enough. There support is excellent as well mate. One of the very few ISP's that actually call me back when I ask. Even out of hours support, say on a Sunday, I've had people call me. All speak English very well.
1 Month contract as well, so if you have no luck your not stuck.
Really enjoying being with IDNet. Had a very plesant experience with them for nearly 2 years now. Had some issues, but like I say, all have been sorted quickly and professionally.